Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/901385
Research center of Embrapa/Collection: Embrapa Acre - Artigo em periódico indexado (ALICE)
Date Issued: 2011
Type of Material: Artigo em periódico indexado (ALICE)
Authors: SOUSA, A. C. B.
JUNGMANN, L.
CAMPOS, T. de
SFORÇA, D. A.
BOAVENTURA, L. R.
SILVA, G. M. B.
ZUCCHI, M. I.
JANK, L.
SOUZA, A. P.
Additional Information: A. C. B. SOUZA, UNICAMP; LETICIA JUNGMANN CANCADO, CNPGC; TATIANA DE CAMPOS, CPAF-Acre; D. A. SFORÇA, UNICAMP; L. R. BOAVENTURA, UNICAMP; G. M. B. SILVA, UNICAMP; M. I. ZUCCHI, UNICAMP; LIANA JANK, CNPGC; A. P. SOUZA, UNICAMP.
Title: Development of microsatellite markers in Guineagrass (Panicum maximum Jacq.) and their transferability to other tropical forage grass species.
Publisher: Plant Breeding, Boon, v. 130, n. 1, p. 104-108, Feb. 2011.
Language: en
Keywords: Capim Tanzânia
Guineagrass
Marcador microssatélite
Amplificação cruzada
Variación genética.
Fitomejoramiento
Marcadores genéticos
Pastos forrajeros
Repeticiones de microsatélite
Description: The Guineagrass (Panicum maximum Jacq.) is one of the most important tropical forage grasses, but genetic knowledge and tools regarding this species are still limited. Therefore, 20 novel polymorphic microsatellite markers were developed, validated, and employed in estimating genetic relationships among 25 P. maximum genotypes selected from a Brazilian germplasm collection. In addition, they were tested for cross-species amplification in four other forage grass species. The number of alleles observed for each locus ranged from 4 to 12 (average 6.7). The values of polymorphism information content (PIC) varied from 0.41 to 0.83 (average 0.61) and the discriminating power (D) ranged from 0.53 to 0.98 (average 0.72). Cross-amplification demonstrated the potential transferability of these microsatellites to four tropical forage grass species. Cluster analysis based on the unweighted pair group method revealed three distinct groups: two clusters consisted of P. maximum genotypes and a third cluster, consisted of the other tropical forage grass species. The data demonstrated that the microsatellites developed herein have potential for germplasm characterization and genetic diversity analysis in P. maximum and other forage grass species.
Thesagro: Melhoramento genético vegetal
Gramínea forrageira
Capim Colonião
Panicum maximum
Seleção genótipa
Variação genética
Marcador genético
Polimorfismo genético
Genótipo.
NAL Thesaurus: Plant breeding
Forage grasses
Megathyrsus maximus
Genotype
Genetic variation
Genetic markers
Microsatellite repeats
Genetic polymorphism.
Data Created: 2011-09-27
Appears in Collections:Artigo em periódico indexado (CPAF-AC)

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